ABB S3N100TWU is a three‑pole molded‑case circuit breaker rated for 100 A at up to 480 V AC, with a 25 kA short‑circuit interrupting capacity. It employs a thermal‑magnetic trip unit for overload protection and rapid response to short circuits in 3‑phase systems, making it suitable for distribution panels and motor‑control circuits that run on 480 V. As part of ABB’s S3N family, this 100 A frame provides compact, dependable protection for industrial 3‑phase installations at 480 V.
